Picker-stick check for looms



Feb. 7, 1928. 1,658,497

- A. N. REEVES FICKER STICK CHECK FOR LOOMS Filed Dec. 1925 A91 25 i 10 B6 a Patented Feb. 7, 1928.

1,658,497 P TENT"err-ICE.

ALFRED N. REEVES, OF NEW LONDON, CONNECTICUT, ASSIGNOB,BYMES1\TE ASSIGN- IVIENTS, TO DRAPER CORPORATION, OF HGPEDALE, MASSACHUSETTS, A CORPORA- TION 0F MAINE.

PICKER-SIICK CHECK FOR IiOOMS.

, Application filed Deceinber 2, 1926 Serial no. 152,246.

The present invention relates to an improvement in looms, and more particularly to the picker stick check.

Any tension on the picker stick tending to move the shuttle. in the box after its reception and prior to picking is undesirable.

The'principal-object of this-invention is to produce a pickerstick check acting to assist in arresting the shuttle but having no tendency to move the shuttle in the box from the time of reception until picking.

Another object of the invention is to produce a construction in which maximum checking effect on the stick is exerted when. the lay is at back center, acting to relieve the checking effect by the forward movement of the lay. To these ends the invention consists in the picker stick check hereinafter described and particularly defined in the claims. a

In the accompanying drawing, Fig. l is an isometric view of a portion of one end of a loom illustrating the present invention; Fig. 2 is a plan of the same; and Figs. 3 and 4 illustrate respectively a plan and elevation of part of the picker stick check means hereinafter described.

The illustrated embodiment of the invention'is described as follows: The end frame 10 of the loom supports the usual breast beam 11, and the lay 12 is supported on the usual lay shaft, the lay being provided with the shuttle box 13, the shuttle being'actw ated by the picker stickl i, all as is usual. The lay 12 is actuated by the crank shaft 15 in the usual manner through the pitman 16.

The picker stick check consists of a strap 20 extending from the picker stick to the bracket 21 and has one end secured to the upper portion of the picker stick and its other end secured to the picker stick check bracket 21, which is bolted by the bolt 22 to the frame of the machine. The bracket 21 is provided with a foot 28,11aving an open slot 24 which receives the bolt 22 by which the bracket is secured in position on the loom frame. From the foot there extends angularly outward from the loom frame the main partof the bracket which is provided with a slot 25to receive the bolt 26 by which the proximal end of the picker stick strap 20 is attached to the bracket. Beyond the main body. of the bracket, the bracket is provided with two arms 27, one of which extends upwardly, and the other of which extends downwardly from the. main body. of the bracket. These arms carry upon their.

ends the horns 28, towhich are attached the this position the shuttleenters the box, and striking the shuttle check,: it forces the picker stick outwardly and causes a pull to be exerted upon the strap, which deflects the spring 29 from its normal position and thereby exerts a yielding pull on the strap. The

lay now starts forward, and the pull exerted by the spring on the picker stick check strap 20 is relieved or diminished. a 5

It is to be observed that the check exerts a maximum checking effecton the picker stick when the lay is at back center, and that asthe lay moves forward the checking effect is diminished; that is to say, the action of thepicker stickv check is to relieve the pull of the strap on the picker stick so that the device acts to relievethe shuttle checking effect by the forward movement of the lay.

This checking ettect isentirely removedby the time the strap 20 has been carried for ward by the lay until it no longer is pressed upon by the spring 29; thereafter there is no I force exerted onthe strap tending to move the shuttle in its box. In the illustrated embodiment the shuttle has no force exerted on it by the check from about bottom center to top center (via front center).

The invention is adapted for both plain looms and for box looms, and is of advantage in both constructions by. reason of the fact that it avoids any tendency to nove the shut tie in the box from reception to picking. It is also of advantage because it varies the shuttle checking eliect with the forward movement of the lay from its back center position. It is also of advantage in box looms I by. reason of the fact that the picker stick having a shuttle box, a picker stick, a picker,

, silient means against which the picker stick strap is pressed when the lay is at back center.

3;A loom having, in combination, a lay having a shuttle box, a picker stick, and api-cker stick check comprising a bracket attached to the loom frame, a picker stick check strap attached at one end of the picker stick and at the other end to the bracket,

- the bracket being provided with a spring;

straight path when the lay is at back supported in such position with relation to the strap that the latter is deflected from the center so as thereby to exert a yielding; pull upon the strap which is relieved as the lay moves forwar 4. A loom having, in combination, a lay having a shuttle box, a picker stick, a picker stick check comprising a strap secured at one end to the picker stick and at the other end to the loom frame at a point in advance of the lay when the latter is at back center, and a spring supported in position to resiliently engage the strap w ien the lay is at back center, and to relieve the pull upon the strap as the lay moves forwardly.

5. A. looin having, in combination, a lay formed with a shuttle box, a picker stick, a flexible picker stick strap having one end connected to the picker stick and its other end secured to a fixed portion of the loom, and a deflector positioned to engage and tie flect an intermediate portion of the strap as the lay goes back and adapted to exert a checking, eii ect on the stick which is at its maximum when thelay is in back position and which decreases as the lay moves frontwardly.

6. A loom having, in combination, a lay having a shuttle box, a picker stick, a picker stick strap, and a yielding deflector positioned to engage and deflect an intermediate portion of the strap as the lay goes back and adapted to exert a maxmum checking effect on the stick when the lay is in back position and which decreases as the lav .L v v moves frontwardly.

in testimony whereof I have signed my name to this specification.

ALFRED N. 

